Heater



H., ROSE Oct. 27, 1942.

HEATER Filed June 12, 1959 5 Sheets-Sheet l o I)? 5 IIIIIIIII/II/IIIIAl/lII/II/IIIZ Oct. 27, 1942. H. m5 2,300,011

HEATER Filed June 12, 1939 5 Sheets-Sheet 2 Fig.2

A TTORNE Y INVENTOR. I

Oct. 27, 1942'.

H. ROSE HEATER Filed June 12, 1939 5 Sheets-Sheet 3 INVENTOF? l-hR/WRose ATTORNEY 0a. 27, 1 942. 0 H. mm 2,300,011

HEATER Filed June 12, 19:59 5 Sheets-Sheet 4 IINVENTOR H492 Y R055 B'Y/QATTORNEY automotive vehicle Patented a. '21, 1942 UNITED STATES PAT'EN TOFFICE HEATER. 7 Harry Rose, Wyandotte, Mich. annucuio rune 12, 1939,Serial No. 278,704 7 26 Claims. (01.2374) e present invention relates toa heater, and

urevehicle, taxicab, bus,

application contains ciaimsf common to the subject matter of thisapplication and my co-pending application Serial No. 229,540, filedSeptember 12, 1938.

An object of myinvention is to provide an heating apparatus which willinclude a construction and arrangement for diverting fluid-cooling orcirculating medium from thecooling or circulating system'oi' theinternal engine of the vehicle and utilizing.

combustion the diverted fluid-cooling or circulating medium to warm thepassenger compartmentof the vehicle and wherein provision is made toimpart under some conditions additional heat to the divertedfluid-cooling or circulating medium.

Another object of my invention is to provide an automotive vehicleheating apparatus as hereinabove generally described and which includesa new and improved fuel burner for heating the fluid-cooling orcirculating medium.

Another object of my anautomotive vehicle heating apparatus ashereinabove generally described and which includes a new and improvedregulating mechanism for lating medium to a heater located in the passenger compartment of the vehicle and for-con- .trolling the addition ofheat to such medium by 'means other than the internal combustionentrolling the flow of fluid-cooling or circulating medium.

Another object of my invention is to provide an automotive vehicleheating apparatus ashereinabove generally describedand which includes anew and improved thermostatic control for invention is to provide fluidfuel or tem of an as individual entities of theheatand in combinationwith each tion novel both ing apparatus other.

And a further object is to provide a fuel or gasoline heated fluidmedium heating apparatus, useful for a variety oi. purposes andespecially useful to the purpose of warming the interior space of anautomotive vehicle, which will be of novel and improved construction andcan be employed as an independent entity or unit for warming or heatingpurposes, either in connection with the cooling or circulatingsysinternal combustion engine, or otherwise.

With the above objects in view, as well as others which will appear asthe specification proceeds, the invention comprises the construction,arrangement and combination of parts as now to be fully described and ashereinafter to be specifically claimed, it being understood that thedisclosure herein is merely illustrative and inwhich follow.

In the accompanying drawings formin a part of this specification,

Fig. l is a side elevational view of a heating apparatus having featuresand characteristics of the invention incorporated therein, disclosingsaidxheating apparatus as when applied to an automotive vehicle;

operating the valve mechanism which regulates I the flow offluid-cooling or circulating medium. Another object of my invention isto provide an automotive vehicle heating apparatuszas hereinabovegenerally described and which includes;

heater for the passenger a new and improved compartment.

A furtherbbject is to provide ayheating apparatus wherein willbeincorporated various im-' proved features and characteristics ofconstruc- .55

section and partially Fig. 2 is an enlarged vertical sectional view,partially in elevation and partially broken away, of the heatingapparatus of Fig. 1;

Fig. 3 is atop plan view, partially in'sectlon and partially brokenaway, of'the heating apparatus of Fig. 2;

Fig. 4 is a vertical sectional view, taken on, line H in Fig. 3;'

Fig. 5 is a detail sectional view, taken as on line55inFig.4;

Fig. 6 is an enlarged fragmentary sectional view detailing elementsdiscloS'd -in Fig. 4,;

Fig. 7 is a sideelevational view, partially in section and partiallybroken away, of a heating apparatus of modified construction madeaccording to the invention;

Fig. 8'i's aside elevational view, partially in broken away, of aheating apparatus of further modified construction made according to theinvention;

- Fig. 9 is atop plan view of the heating apparatus of Fig. 8; 1

disclosed, each tube fastened,

Fig. is a rear elevational view, partially in section and partiallybroken away, of a heating apparatus of still further modifiedconstruction made according to the invention; and

Fig. 11 is a vertical sectional view, partially in side elevation andpartially broken away, of a heating apparatus of yet still furthermodified constructionincluding features and characteristics of theinvention.

With respect to Figs. 1 to 6 of the drawings and the numerals ofreference thereon, l5 denotes the engine iacket, IS the fluid coolingradiator, II the fluid connection from the jacket 15 to the radiator, I8the fluid connection from said radiator to said jacket, and 19represents, generally, the usual pump for the fluid-cooling orcirculating medium of an automotive vehicle 20 of any ordinary orpreferred character, such as a pleasure vehicle, taxicab, bus, or truck.Ordinarily, the fluid-cooling 0r circulating medium is circulated by thepump l9 from the jacket I5 through the connection II to the radiator l6and back to the jacket from the radiator through the connection (8.

In Figs. 1, 2 and 3 of the drawings, the novel and improved heatingapparatus, designated 2|,

' is mounted partially within the body 22 of the automotive vehicle 20and partially beneath the hood 23 of said automotive vehicle, numeral 24indicating the dash of the vehicle upon which the heating apparatus issupported in a manner to be set forth. As also to be made clear, 5 tablefluid conveying connections are provided whereby a part or all of thefluid-cooling or circulating medium of the internal combustion engine ofsaid vehicle is diverted and utilized as heated fluid medium forsupplying heat to said heating apparatus. V

The heating apparatus 2i includes a heating unit 25 situated within thevehicle body 22, and said heating unit 25 includes a fluid-heated,airheating core consisting of an upper fluid tank 26, a lower fluid tank21, a plurality of spaced apart fluid conveying tubes, each extendingbetween fins, each indicated 29, in spaced relation upon said tubes 28and extending transversely thereof. The fluid conveying tubes 28 arearranged in two spaced apart banks or sets of tubes. As 28 is relativelyflat and wide, said tubes desirably being of width slightly less thanthat of the tanks 26 and 21. Said' tanks desirably are of equal lengthand width. Outermost tubes 28 of the different banks or sets of tubeswill be arranged adjacent the opposite end portions of the tanks and allof saidtubes will be parallelly arranged.

Each of the fluid tanks 26 and 21 desirably may consist of a headerplate 30, into which the adjacent ends of the tubes 28 are suitablyfastened in fluid-tight fashion, as by soldering or otherwise, and ahousing member 3| suitably also in fluid-tight fashion, as by solderingor otherwise, to the marginal portions of the corresponding header plate30.

The fins 28 desirably are of relatively small thickness and of widthslightly greater than the width of the tubes, which may be of equalwidth. The construction will include longer fins adjacent the outer endportions of the core of the heating unit 25 and shorter fins between thetwo sets of longer fins. The longer fins will be of length about equalto the length of each tank 26, 21, and each shorter fin will be arrangedupon the tubes 28 of but a single bank or set of tubes. The fordenoted28,- said tanks 26 and 21, and,

plates.

ward and rearward edges, respectively, of the fins desirably terminatein a single plane, as do also the outer edges, respectively, of saidfins. The inner edges of the shorter fins, between the two sets oflonger fins, terminate at about the location of the innermost tubes 28,28 of the different banks or sets of tubes. The innermost fins of thetwo sets of longer fins are in spaced relation to each other, and thus arectangular space, represented 32, in the core and between the banks orsets of tubes and surrounded by the longer and shorter fins is provided,for a purpose to be made clear.

The tubes 28 of the difierent banks or sets of tubes desirably arespaced at equal distances from each other, and each of said tubesdesirably is perpendicular to each header plate 38, with the widths ofthe tubes preferably disposed perpendicularly to a plane extendinglongitudinaly and perpendicularly through both header The fins 29,including both the longer and shorter fins, desirably are likewisespaced at equal distances from each other, with the uppermost andlowermost flns desirably being spaced at this same distance from theheader plates 30, as best disclosed in Fig. 2. Said fins 29 may beassociated with the tubes 28, before 'said tubes are secured to theheader plates 30, by providing openings through the fins of size to fitthe tubes and sliding the fins over said tubes, or sliding the tubesthrough the openings in the fins. Preferably, the fins are secured tothe tubes, as by soldering or otherwise, to be in intimate heatconveying contact therewith.

When a core constructed as described is completed, it comprises agenerally rectilinear artisaid upper housing member. support orconnection 36 has a threaded end porcle, said article having theopposite end portions thereof, constituted by the housing members 3| ofthe tanks 26 and 21, constructed along somewhat curvilinear lines.

A supporting structure for the heating unit is adapted to be assembledwith tubular or pipe supports or connections for said heating unit. Thefluid tank 26 conveniently carries at the interior thereof a suitablebracket 33, said bracket being suitably secured to the upper wall of theupper housing member 3!. A downwardly extending flange 34 of the bracket33 includes a tapped hole 35 adjacent the rearward wall of A tubular orpipe tion 31 turned into the tapped hole 35, as disclosed very clearlyin Fig. 2. The tubular or pipe support or connection 36 extends throughan opening in the rearward wall of the upper housing member, and afluid-tight seal is provided between said opening and said tubular pipesupport or connection, as by soldering or otherwise. The bracket 33desirably is constructed so as to spread over a considerable area On theinside of the housing member of the upper tank 26, to provide arelatively wide supporting surface for the heating unit 25. p Also, thebracket 33 and the tubular or'pipe. support or connection 36 are ofquite rigid structure, and when said tubular or pipe support orconnection is rigidly secured in the rearward wall of the upper. housingmember -3l, as by soldering or otherwise, said tubulai or pipejsupportor connection is obviously fixec against turning movement in the bracket33.

Numeral 38 denotes an electric motor withix the space 32 of theheatingcore of the heatin unit, andsaid electric motor has a blower or far 39fixed upon the motor shaft 40. The electril space 32, and thearrangement is such that the blower or fan 38 will be situated adJacentthe core in fairly close relation thereto, about as illustrated'in Fig.2. when electric power is applied from a source (not shown), such as thebattery of .an automotive vehicle, to the motor 34, the blower or fan 29isdriven to force air through the core, past and over the tubes and flnsthereof. The electric motor canbe secured a in and to the core of theheating unit 25 in any suitable and convenient manner.

Ausual casing 4| is adapted to contain the v Numeral 5| denotesa tubularor pipe support or connection adapted to cooperate with the tubular-orpipe support or connection 35 to the purpose of mounting'the heatingunitupon the dash 24. Said tubular or pipe'support or connection 5| passesthrough an opening in the flange I44 and is suitably and convenientlysecured, as at 52, upon the rearward wall of the lower housingmember 3|.The outer portion 53 of the tubular or pipe support 5| is externallythreaded and passes through a hole in the dash 24 of the automotivevehicle, said hole closely fltting upon said tubular or pipe support. Anextension 54 upon said threaded outer portion 52 of the tubular orpipesupport 5| is disposed beneath the hood 23, at the side of the dash 24opposite the heating unit 25. Said tubular or pipe support 5| is rigidlysecured in the dash of the automotive vehicle by adjustable supportingnuts 55 uponthe tubular or pipe support 5|, there being anut 55 at eachside of the dash, each of which nuts can be turned up against a washer55 between the nut and the dash.

a casing including straightside walls, curvilinear upper and lower endwalls, and a front wallperpendicular to said side and end walls of thecasing, said front wall being'cut away or open, as

before stated. The cut-away or open portion of i The weight of thecasing assembly, including the electric motor and blower or fan, thegrill or deflector and the shroud, is made rigid-with the core of theheating unit 25, which carries said weight back to the tubular or pipesupports "Stand I.

A hot fluid heater of commerce constructed as hereinbefore describedadditionally includes a fluid connection extending from the enginejacket II to the tube or pipe 5| and a fluid connection by the rearwardshell 4!,includes a flange 44 parallel with the front wall of saidcasing, said flange 44, together with the adjacent portions of saidrearward shell 43, constituting a shroud for the blower or fan includinga circular opening 45 in spaced relation thereto. The core is insortedin the casing 4| so that said core is situated centrally of the cut-awayportion or opening in the front wall of said casing desirably tocompletely cover said cut-away portion or opening.

The tubular-or pipe support or connection constitutes a portion of meansthrough the instrumentality of which the heating unit .25 can be mountedupon a fixed part of the automotive vehicle body 22. As disclosed veryclearly in'Figs.

1, 2 and 3, theouter portion 45 of the tubular or pipe support 25 isexternally threaded and passes through a hole in the dash 24 of theautomotive vehicle, said hole closely fltting upon said tubular ,or pipesupport. An extension 41 upon said a washer 49 between the nut and thedash. The

tubular or pipe support 25 passes through an opening inthe flange 44,and. a spacing sleevev 55 upon saidtubular or pipe support 35 hasone ofits ends engaging the rearward surface of the upper housing member ll ofthe core and its other end engaging said flange 44. It will be evidentthat the supporting. nuts 45 can be adjusted to situate the tubular orpipe support 25 in the vehicle dash 24 so that the casing 4| has anydesired relation to said dash 24, closer to or farthe: from said dash.

tube or pipe 5| and from said tubeor pipe 35 to said connection II! areby way of a, mechanism 51 p of structure and for purposes to bedescribed. As

shown, a fluid pipe 58 constitutes a connection between the enginejacket I5 and the mechanism 51, and said mechanism is connected to thetube or pipe 5| to be capable of communicatingtherewith at a side'of themechanism opposite said fluid pipe 58, and a fluid pipe 59 constitutes aconnection between said mechanism 51 and the connection It and the tubeor pipe 36 is connected to the mechanism to be capable of communicatingtherewith at a side of said mechanism opposite said fluid pipe 59.

Were the novel and improved mechanism; 51

, omitted from the heating apparatus, and, instead,

the fluid pipe. 58 directly connected to the tube or pipe 5|,incommunicating relation therewith and the tube or pipe 35 directlyconnected to the fluid pipe 59 in communicating relation therewith, saidheating apparatus would be operative i jacket I 5 through the tube orpipe, the fluid pipe 58 and the connection I5. Any other suitableandpreferred arrangement for circulating all or any desired portion ofthe heated fluid of the engine cooling system'through the core oftheheatingunit 25 of course can be substituted forthe arrangementdisclosed. As illustrated, the flow of heated fluid from and backto theengine jacket is upward through the heating unit core.

The flow from and back to the engine Jacket could of course be downwardthrough the core of the heating unit, the heated fluid in such aneventpassing through a suitable connection attached to the tube or pipe 36 tohereenter the core and leaving said core by way of the tube or pipe 5|and a suitable connection attached thereto. The heated fluid uponentering the tube or pipe 5| passes into the lower tank 21. Thenceheated fluid passes upwardly through each of the relatively flat andwide tubes 28 to the upper tank 26. And from said tank 26 the heatedfluid passes out of the heating unit 25 through the tube or pipe 36.While traveling through the tubes 28, the heated fluid gives off heatwhich is absorbed by the fins 29, and, by rotation of the blower or fan39 to force air past and over the tubes and fins, the air is caused tobe heated and distributed throughout the vehicle body.

The mechanism 51 by way of which the engine jacket |5 and the fluid pipe58 are connected to the tube or pipe 5| and the tube or pipe 36 isconnected to the fluid pipe 59 itself attached to the connection I8 isdisclosed in Figs. 1, 2 and 3 as situated beneath the hood 23, supportedby the extensions 41 and 54 of the tubular or pipe supports 36 and 5|,respectively. A purpose of said mechanism 51 is to provide or supplyheated fluid medium for the heating unit 25 and to cause the provided orsupplied heated fluidmedium to be fed to said heating unit independentlyof the cooling or circulating systemas such of the internal combustionengine of the automotive vehicle 29, and a further purpose of themechanism 51 is to render said internal. combustion engine cooling orcirculating system as such incapable of forcing or feeding heated fluidmedium to the heating unit 25 while said'mecha- 51 uponthe tubular orpipe support 36, and said tubular element 16 is of construction and iscomposed of material to constitute a fluid seal between said extension41 and said boss or protuberance 69. Said neck 68 is also joined with asecond integral, hollow, horizontal boss or protuberance 1| at theelevation of the boss or prohollow neck 68 is open at its lower portionto the nism is causing heated fluid medium to be forced or fed to saidheating unit, as well as to render the mechanism 51 itself incapable ofcausing heated fluid medium to be forced to the heating unit while thisis being supplied or provided with heated fluid medium from the coolingor circulating system of the internal combustion engine of saidautomotive vehicle 20.

The mechanism 51 includes a pair of control chambers constituted as anupper control chamber 60 and a lower control chamber 6|: A horizontalpartition 62 between the control chambers 60 and 6| separates saidcontrol chambers; from each other, and a small opening 63 through saidpartition 62 afiords limited communication between the control chambers60 and 6| to a purpose to be'made clear. The control chambers 60 and 6|are provided by an upper and a lower bellows housing, denoted 64 and 65,respectively,

and saidbellows housings 64 and 65 are secured to each other as at 66.Said horizontal partition 62 is secured between the bellows housings 64and 65 in any suitable and convenient manner.

The upper bellows housing 64 includes a horizontal partition 61 inspaced relation to and rigidly secures the upper bellows housing 64 tothe extension 41 and thus mounts the mechanism upper control chamber 60and includes the hollow bosses or protuberances 69 and1| at its upperportion, but otherwise said hollow neck 68 is closed. The fluidconnection 59 is connected to a hollow boss or protuberance 13 upon andintegral with the upper bellows housing 64, below the horizontalpartition 61, in communicating relation to the upper control chamber 60.

The lower bellows housing 65 includes a horizontal partition 14 inspaced relation to and below the horizontal partition 62 anda downwardlyextending hollow neck 15 at the lower portion of said lower bellowshousing 65, which neck 15 is adapted to communicate with an integral,hollow, horizontal boss or protuberance 16 alined with the extension 54of the tubular or pipe support 5| and rigidly secured to the extension54 in communicating relation therewith by a tubular element 11 insurrounding relation to both said boss or protuberance 16 and saidextension 54. rigidly secures the lower bellows housing 65 to theextension 54 and thus mounts the mechanism 51upon the tubular or pipesupport 5|, and said tubular element 11 is of construction and iscomposed of material to constitute a fluid seal between said extension54 and said boss or protuberance 16. Said neck 15 is also joined with asecond, integral, hollow, horizontal boss or protuberance 18 at theelevation of the boss or protuberance 16 and disposed substantiallyninety degrees from said boss or protuberance 16 in the disclosure asmade. The bosses or protuberances 16 and 18 are adapted to communicatewith each other by way of said hollow neck 15. The lower end of saidneck 15, directlybelow the bosses or protuberances 16 and 18, is closedby a horizontal piece 19. Stated differently, the hollow neck is open atits upper portion to the lower control chamber 6| and includes thehollow bosses or protuberances 16 and 18 at its lower portion, butotherwise said hollow neck 15 is closed. The fluid connection 58 isconnected to a hollow boss or protuberance 86 upon and integral with thelower bellows housing 65, above the horizontal partition 14, incommunicating relation to the lower control chamber 6|.

The horizontal partition 62 fixedly supports the lower portion of anupper'control bellows 8| which is situated in the upper control chamber66 below the horizontal partition 61 in spaced relation to saidpartition 61 and the upper bellows housing 64 and extends upwardly fromsaid partition 62. The upper end of the upper control bellows 8| isclosed and fixedly supports an upper valve stem and control plunger 82which extends upwardly through an opening 83 in the horizontal partition61 and through the hollow neck 68 in spaced relation to said neck. Anintermediate That is, the tubular element 11 plunger82 iixedly carries adisc valve 04 adapted protuberance 88 leading to the tube or pipe 80,

provided by said opening. The disc valve 84 tuberance 18 leading fromthe tube or pipe' 8| portion 01 said upper valve stem and control 18leads.

. 88 for a butterfly valve 81 within the boss or fluid fuel heatingdevice which in the disclosure. boss or protuberance 68 and a,boiler,,presently andlower hollownecks "and 15, respectively. [to bedescribed, with which said boss or pro- Said-heating device includesafboiler consisting 'tuberance 1I communicates. When the upper of anouter boiler shell I03 and an inner boiler fl yj valve 81 is in closedposition and when said The outer boiler shell I08 and the inner boiler4, said disc valve 84 isin closed position and said boiler between saidboiler shell and boiler core. butterfly valye81 is rotatably s ipportedas at by a wall I01 01 the outer boiler shell I08, and ,f88, in the bossor protuberance H and includes the upper end of said fluid chamberI08isclosed .through the lnstrumentality of a pin 80' carried 25 seatedagainst an annular shoulder I08 provided '1 port'sthe upper portion of alower control bellows n upper por ion of the fluid chamber I06 com-.lowervalve stem 93 which extends downwardly o her n c mmuni ating,fluid-tight relation 1 :16 m 51 An mt e t m of portion or the fluidchamber I06 communicates t he iower valve stem 83 ean-ie a di yalv ,9540 with ahollow, horizontal boss orprotuberance III r 8,800,022 i 5portion of the upper valve stem and control "boss or protuberance 1|leads and the boss or to close e opening 88 in. the partition" by aswell as a communicating connection by way of engagement with a valveseat 88 surrounding and the hollow. neck between the boss or proisdisposed above said partition 81. An upper and said boiler towhich thebossor protuberance plunger 82 fixedly carries an actuator, elementTheheating apparatus incorporates a fuel or protuberance 1| and adaptedto shut oil! carry 1 as made is associatedor assembled with themunication by way oi said neck 68 between the bosses or protuberancesHand 18 upon the upper control bellows is expanded, as in Fig.2, the i5core I04, and also includes a burner I05 for disc valve 84 is in openposition and the buttercausing the boiler to be heated.

upper control bellows 8| is contracted, as in Fig. core I 04 provides afluid chamber I08 ot the butterfly valve 81' is in open position. The-20 The lower endoi the fluid chamber I08 is closed a manipulatingjl'ever88thereior which is operi by an annular outwardly extendingflange I08 atively assembled with the actuator, element 86 upon theupper end of the inner boiler core I04 by said manipulating lever 88 anddisposed in at the upper end of the outer boiler shell I08. an elongatedslot 8| in said actuator element 88. Said outer boiler shell I03 andinner-boiler core The horizontal partition 82 alsofixediy sup- I 04 arri idly assembled together.

02 which is situated in the lower control chamber n ca w a o w, o ontaboss o p o- II above the horizontal partition 14 in spaced tuberance 0which is integral with the'outer relation to said partition 14 and thelower-bellows :boiler shell I03andis situated directly below the housingand extends downwardly from said annular shoulder I08, in aliningrelation withthe partition 62. The lowependwof the lower o boss orprotuberance 1|. As disclosed; said bosses troi bellows 82 isclosedandflxedlysupports a 35 r D r n s II nd I III are rigidly securedthrough an opening 84 in the horizontal partition to each other. Anysuitable and convenient 14 andthrough the hollow neck 15 in spacedremeans can be employed to this purpose.- A lower mg andpfovided bysamopemng 94,, The disc outer boiler shell, in alining relation with thevalv 95,1 disposed b l p rtm "Is, A boss or protuberance 18. The bossesor prolower-"portion 01' said lower valve. stem 83 flxedly 4- carries anactuator element. 81 for a butterfly B r in m ni n fluid-tightrelationto valve 88 within the boss or protuberance 18 and each other y emplyment of any suitable and adapted to shut oil communication by way of.conveni n m ans- Thus, the boiler, withiapsaid neck 15 between the bossor protuberance I6 p r nanc sfixedly supported uponthe beland theberorementioned boiler'with which said ws housings, 64 and 6 which re; n turn,boss or protuberance 18 c mmunicates, when rigidly secured to each otherand rigidly mounted the lower control bellows 82 .is expended, as in p tt a p e pports 36 and 5I. I 111;, 2, t disc valve 1 h; open position andThe fluid chamber I06 provided by the outer t butterfly valve 93 isclosed position, and boiler shell I03 and the inner boiler core I04 isin when said lower control bellows. 82 is contracted, o s o nd ngrelation to said inner boiler core,

as inFig. 4, said discvalve 88 is in closed position As disclosed, theburner I05 includes an igniter and said butterfly valve 88 is in openposition. case I! rigidly and tight y Sea d in the open Thebutterflyvalve 88 is rotatably supported, as upper nd of e inner boiler core I04.Said It will be obvious'that when the control bellows 05 h l 0f Said iteoase. n the dis- II and 8 2 are situated as in Fig. 2, there will be a0108111? as made, the t I I4 includes a 84 between the tube or pipe 38andthe fluid pipe case II2 above the re-igniter I I4 and at their lower88; It also will be obvious that when the control ends with a smallerchamber I I8 below said rebellowsj 8| and 82 are situated as in Fig. 4,there igniter. The smaller chamber H8 is open to the will be acommunicating connection by way oi'the interior I20 of the inner boilercore I04 by way hollow neck 88 between the boiler from which the 7 of apassage I 2| in the lower wall I22 01' the igniter case. A sleeve I28 isdisposed rigidly in .the chamber II8 against its side wall, and thelower end of said-sleeve I23 engages a marginal portion ofthe re-igniterH4 and retains said reigniter against the annular shoulder H5. Theapertures II1-are disposed between the concavity H6 and the sleeve I23.

The burner I also includes a resistance element I24 situated in a wayI25 directly above the chamber I I8 provided by a tube I26 supported bya frame I21. The upper end of the resistance element I24 is anchored ina conducting element I28 itself insulatively fixed, as at I29, in anenlarged portion I30 of the tube I26 at the upper end of said tube, andthe lower end of said resistance element is attached to the tube I26.The conducting element I28 extends to position above the enlargedportion I30 of said tube I26, and the upper portion of the tube isclosed in fluidtight manner at the location where said conductingelement is fixed in the tube.

The inner boiler core I04 includes a lower closure wall I3I in spacedrelation to the lower closure wall I01. of the outer boiler shell I03,and a tubular connector. I32 extends between the walls I3I and I01. Thetubular connector I32 is hollow, isdisposed substantially centrally ofthe lower closure wall I3I, and is composed of material adapted readilyto expand and contract without breaking. Said tubular connector I32 issoldered or welded, as at I33,. n the lower closure wall I3], and issecured to the lower closure wall I01 through the instrumentality of afitting I34. The construction and .arrangementis such'that the jointsbetween the tubular connector I32 and the walls I3I and I01 arefluid-tight. An outlet pipe I35-is suitably and conveniently secured tothe fitting I34, and the interior I20 of the inner boiler core I04 is incommunicating relation to said outlet pipe I35 by way of the hollowtubular connector I32. -The outlet pipe I35 constitutes an exhaustpassageway leading from the burner and extends to the intake manifold ofthe internal combustion engine of the automotive vehicle 20, as will beclear from Fig. 1. A generally V-shape baflie I36 is suitably andconveniently situated within the interior I120 of the inner boiler coreI04 with its base situated below and adjacent the passage I2I and itsdivergent legs at either side of the hollow tubular connector I32- Theouter surfaces of the V -shape baflle I36 are in spaced relation to theside wall of the inner boiler core I04, as arealso the opposite sideedges of said V-shape baffle, and the ends ofthe legs of the baffle,spaced from the base, terminate at location which is adjacent the lowerclosure-wall I3I. See Figs. 4 and 5.

The frame {I21 is disclosed fastened downagainst the igniter case II2 byscrew bolts I31 and' is rigid with the remainder of the heater andburner. An inlet pipe I38 leading into the chamber H8 is adapted toextend from a carburetor I38 for causing fluid fuel, such as gasolinemixed with air, to be drawn or fed into said chamber H8 in responsetosuction created in the intake manifold of the internal combustion engineof the automotive -vehicle 20. The inlet pipe I 38 is supported .up'onthe-horizontal piece 12 and is rigidly'securedto the frame I21. An inletpassageway l40- throughsaidinlet pipe I38 communicates'with a passageI41-in the frame I21 which leads to an annular space I42 within saidframe surrounding the lower portion of the tube I26'and contiguous withthe upper end of the chamber H8. The annular space I42, the chamof saidhorizontal'piece 12.

ber IIO, the chamber H8 and the interior I20 of the inner boiler coreI04 may be termed the combustion chamber of the burner. v

The inlet passageway I40 through the inlet pipe I38 extends across apath which is directly above the upper valve stem and control plunger82. The horizontal piece 12 constitutes the base of a device forallowing and shutting off flow of combustible fuel from the carburetorI38 through said passageway I40 of the inlet pipe I38 to the combustionchamber of the burner. Said device also constitutes a'seal forprecluding the passage of fluid out of the upper control chamber 60 byway I A bellows I43 is secured at I44 to a lower portion of thehorizontal piece 12 to extend downwardly therefrom, and the base I 45 ofsaid'bellows I43 rigidly supports a shut-off rod I46 which extendsupwardly'through the bellows in alining relation to the upper'valve stemand control plunger 82, as wellas upwardly through an opening in thehorizontal piece 12. Said shut-off rod I46 is suitably arranged in thehorizontal piece 12 to be snugly slidable therein and is as discloseddisposed axially of the bellows of the inlet pipe I38 at one side of itsinlet passageway I40. Said coil spring I48 also retains the base I45 ofthe bellows I43 in engagement with the upper end ofthe upper valve stemand control plunger 82 when the upper control bellows 8| is contracted,as in Figs. 4 and 6. The arrangement is such that whensaid upper controlbellows 8I is expanded, said upper valve stem and control plunger 82causes the shut-off rod I46 and the shut-oil valve I41 to be elevated,against the action of the coil spring I48, so that said shut-off valveI4! is across the path of the inlet passageway I40, as in Fig. 2,tocompletely shut off communication between the carburetor I39 and thecombustion chamber of the .burner.

The resistance element I24"is adapted tobe energized by electricalcurrent from any suitable and convenient source (not'shown). A circuitfor said resistance element can; include a bimetallic blade I5Iinsulatively supported, as at I52. upon the frame 521. The arrangementis such that the bimetallic blade I5I is engaged with the conductingelement I28 when said bimetallic blade is not heated, and is removedfrom said conduct-'- ing element when the bimetallic blade is heated.That is, the bimetallic blade, I5I engages the conducting element I28when the heater is at low temperature and becomes removed from saidconducting element when said heater is at elevated temperature. Inpractice, the conducting element'IZB and the bimetallic blade I5I becomedisengaged, to thus cause the resistance element I24 to becomede-energized, when thev heater has operated for a suificient period oftime to cause passageway I4I,

will be ignited has a longitudinal port I 55 therethrough adapted to becovered and uncovered by a ball valve I58 supportedby a bimetallic armI51 itself suitably and conveniently mounted, as at I58, upon the frameI21. The arrangement is such that the bimetailicarm I51 situates theball valve I56 in engaging relation with the screwjplug I54 to cause thelongitudinal port I55 to be closed when said bimetallic arm is notheated and in spaced relationto said screw plug to cause saidlongitudinal port to be open whenthe-bimetallic arm is heated. That is,the bimetallic armI51 causes the longitudinal port I55 to be closed whenthe heater is at low temperature and to be open when said heater is atelevated temperature. In'practice, the longitudinal port I55 isclosedwhen the heater is started up, so that a relatively richcombustible fuel mixture will be fed to the combustion chamber of theheater for the commencement of tion,1iquid fuel, say, for example,gasoline, mixed with air will be drawn' or :pulled or fedfrom thecarburetor I38 into the combustion chamber of the heater through theinletpipe I38 and the due to suction created in the intake manifold ofsaid internal'combustion enfl ne. The combustible fuel mixture of courseby said resistance element I24 and caused to burn in said combustionchamber. The products of combustion, or hot gases, in passing throughtheinterior I20 of the inner boiler core I04, about the bailie I36, willcause fluid in the boiler space or fluid chamber "I06 to be heated. Theproducts of combustion, when spent and comparatively cool, will pass tothe intake manifold of the internal combustion engine. Evidently, hotfluidywhether. liquid or gaseous, created in the fluid chamber I06 ofthe boiler will rise to the top or upper portion of saidboiler andtraverse the hollow bosses or ,protuberances H and 1|, and hollow neck68, the hollow boss or protuberance 69 and the tubular or pipe support36 over to the heating unit 25. The hot fluid will enter the upper tank26 give up heat to said heating unit'and its tubes 28 and fins 29 beforeset forth inconnection with the fluid cooling or circulating medium fromthe'l'internal combustion engine cooling orcirculati'ng' system of theautomotive vehicle enters the upper tank 26 of the heating unit core issteam, or gaseous, it will be condensed in said core and its tubes bythe action of the blower or fan 39, as will be apparent. The hot fluid,while all the time imparting heat to the heating unit and its tubesandfins, will pass downwardly by gravity to the lower tank '21 of thecore of said heating unit, and thence the hot fluid will travel by wayof the tubular or pipe support 5|, the hollow boss or protuberance 16,the hollow neck and the hollow bosses or protuberances 18 in Fig. 4,with the resistance in the general manner as herein 20. If hot fluidwhich aaoo n aided! the frame I21, and said screw plug I54,

and III back into'the fluid chamber I08. As hereinbefore mentioned, theresistance element I24 is energized during the starting. period of theburner, and is thereafter de-energized. Upon de energizationlof saidresistance element I 24 combustion is sustained, so long as the feed ofcombustible fuel mixture to the combustion. chamber continued, by there-igniter H4. Also, the ball valve I56 is in closing relation to thelongitudinal port I55 during the starting period of the burner, and isthen moved toopen position of said longitudinal port to thus permitadded air for combustion purposes to enter the combustion chamber, asabove briefly stated.

When the fluid-cooling or circulating medium of the cooling orcirculating system' of the internal combustion engine of the automotivevehicle 20 is below a set and predetermined temperature at or abovewhich said fluid-cooling or circulating medium should be to properlyheat the interior space of the body 22 of the automotive vehicle, thecontrol bellows 8| and 92 will be contracted, and the upper valve stemand control plunger 82 will be positioned. to situate the valve I41 asin Figs. 4 and 6, out of the inlet passageway I through the inlet pipeI38. Supposing the internal combustion engine of the automotive'vehicle20 to be, started up cold withthe parts of the heating apparatuspositioned as in said Fig. 4, the resistance element I24 beingenergized, the course of the fluidcooling or circulating medium of the'cooling or circulating system of the internal combustion engine from thejacket I5 to the heating apparatus and back to'the jacket will bethrough the fluid pipe 58 to the lower/control chamber 6 I, thencethrough the opening 63 in the partition 62 to the upper control chamber60, and thence through the fluid pipe 59 and the connection l8 back tothe jacket IS. The fluid-cooling or circulating medium cannot at thistime pass downwardly'through the hollow neck 15 or upwardly through thehollow neck 88 because said hollow necks are completely shut off orclosed by the i of the core of said heating unit and will, natural,.l-y,' ;pass downwardly into 7 the tubes 28. Here the""*hot fluid,whether liquid or gaseous} will valves and 84, respectively, as clearlyillustrated in Fig. 4. Naturally, thefluid-cooling or circulating mediumfrom the cooling or circuiating system of the internal combustion enginewhich passes through the control chambers BI and 60. will, upon theheating up of said fluidcoolingor circulating medium. due to heating upof the internal combustion engine by operation thereof, cause the uppercontrol bellows 8| and the lower control bellows 92 to become heated. Atsuch time as the temperature of the fluid-cooling or circulating mediumof the cool-- ing or circulating system of the internal combustionengine has become heated up to a degree at which it is desirable thefluid of said cooling or circulating-system traverse the heating unit25, the upper and lower bellows BI and 92 will have expandedsufficiently to allow communication between the fiuidpipe 58 and thetube or pipe 5| throught the. lower controlchamber GI- and between thetube or pipe 36 and the fluid .pipe thIOUghthe' upper control amber 61L;andto shut oif communication between the neck 69 and the boss orprotuberance and the boss or protuberance III. time, theupper valve stemand control plunger 82 will'have caused the valvexI41 io enter the inletpassageway I40 and caused said passageway to become shut off.

During the interval the internalrcombustion engine is warming up, theheating device op- IIO and between crates in the manner and to thepurpose as hereinbefore fully set forth, and when the temperature of thefluid-cooling or circulating medium of the internal combustion enginecooling or circulating system becomes sufliciently warm or hot toproperly heat the interior of the automotive vehicle body 22, operationof said heating device is concluded. I That is, the inlet passageway I40is shut off to terminate the drawing or pulling or feeding ofcombustible fuel mixture into the combustion chamber. The resistanceelement I24 becomes 'de-energized during the interval'after the internalcombustion engine'is heating up, and with cessation of feed ofcombustible fuel mixture to the combustion chamber of the burner, there-igniter H4 eventually loses its heat. Desirably, the arrangement willbe such that the resistance element 7 I24 will stay de-energized so longas the temperature of the fluid-cooling or circulating medium remainssufficiently warm or hot to properly heat the vehicle body. Stateddifferently, the bimetallic blade II is adapted to receive heat by wayof the frame I21 iromthe fluid heating medium which passes through thecontrol chamber 60 to be out of engagement with the conducting elementwhen said fluid heating medium is sufflciently warm or hot to heat theautomotive vehicle body, and to engage said conducting element when thefluid heating medium temperature is reduced below the temperature atwhich it will properly heat said vehicle body. Or, an alternativearrangement can provide that the resistance element I24 remain energizedat all times except when the re-igniter I I4 is sufficiently hot toitself sustain combustion in the combustion chamber. In any instancewhere preferred, the electric circuit including the resistance element I24and the bimetallic blade I5I can be manually broken after there-igniter II4 has become sufliciently heated to sustain combustion. Inany instance, it is desirable that the ball valve I56 be in closedposition at all times when the re-igniter H4 is not capable ofsustaining combustion.

While the control bellows BI and 92 are expanded and hotfluid is beingcaused to circulate from the jacket I5 to the heating unit 25 and backto said jacket I5, the course of the flow of hot fluid through themechanism 51 is from the fluid pipe 58 into the lower control chamber6|, thence through the boss or protuberance I6 and the tube or pipe 5|into the lower tank 2! of the core of the heating unit, and from theupper tank 26 of said core into the tube or pipe 36 and thence throughthe boss or protuberance 69, the upper control chamber 60 and the fluidpipe 59 and the connection I8 back to said jacket I5. The opening 63through the partition 62 is of negligible size and does not appreciablylessen the flow of hot fluid through the heating unit 25 when this isbeing supplied or provided with fluid-cooling or circulating medium fromthe internal combustion engine cooling or circulating system.

Attention is called to the fact that in the disclosure of Figs. 1 to 3,hot fluid, liquid or gaseous, as the case may be in a particularinstance, supplied or provided by the special heating device of theheating apparatus is caused to flow or travel downwardly through theheating unit 25, while hot fluid supplied or provided by the cooling orcirculating system of the internal combustion engine of the automotivevehicle 20 is caused to flow or travel upwardly through said heatingunit. 7

Attention also is called to the fact that should the fluid-cooling orcirculating medium of the cooling or circulating system of the internalcombustion engine of the automotive vehicle 20 become reduced intemperature to extent sufflcient to render said fluid medium unfit forproper heating of the interior space of the body 22 of said automotivevehicle during operation of the internal combustion engine, the parts ofthe heating apparatus will become operated from the positions as in Fig.2 to the positions as in Fig. 4, so that hot fluid heating medium willbe supplied or provided for and fed to the heating unit 25 by thespecial heating device.

In practical operation of the heating apparatus, let it be supposed thata person intending to operate the automotive vehicle 20 starts up theengine thereof in winter and when cold, and also closes a switch (orswitches) of said heating apparatus which cause the resistance elementI24 and the electric motor 38 to be energized and the blower or fan 39to be put into operation. In just a few seconds real heat is produced inthe automotive vehicle body through the instrumentality of hot fluidsupplied, provided or fed to the heating unit 25 by the special heatingdevice. A very. short while afterwards, say when the automotive vehiclehas been driven only a short distance, the fluid-cooling or circulatingmedium of the cooling or circulating system of the internal combustionengine becomes sufflciently heated to supply or provide heating mediumhot enough to the purpose of properly warming the interior space of saidautomotive vehicle body, and control for the heating medium for theheating unit 25 is turned over to said internal combustion enginecooling or circulating system and taken away from the special heatingdevice. Later, should the temperature of the fluid-cooling orcirculating medium of the cooling or circulating system of the internalcombustion engine drop to temperature at which unfit to the purpose ofproperly warming the interior space of the automotive vehicle body,control of the heating medium for said heating unit 25 is turned back tothe special heating device and taken away from the internal combustionengine cooling or circulating system.

Evidently, the special heating device which the invention presents canbe inexpensively.

maintained, especially for the reasons that it is required to functionfor only a short period or interval any time it is placed in operationand that it is but infrequently required to be operated. At the sametime, said special heating device renders the heating apparatusaltogether efficient, satisfactory and dependable, particularly becauseof the fact that it is capable of producing quick heat and real heat atthe heating unit 25.

In Fig. '7 there is disclosed a heating apparatus of modifiedconstruction made according to the invention. A tube or pipe connection36,

equivalent to the tube or pipe connection 36, and

a tube or pipe connection 5|, equivalent to the tube or pipe connection5|, are supported upon the dash 24' and lead to a heating unit, whichcould be the heating unit 25, of the heating apparatus disposed withinan automotive vehicle body. A fluid connection I59 is adapted to connectthe tube or pipe connection 36' with a fluid connection such as I8, anda fluid connection I60 leads from an upper portion of a fluid chamber m,equivalent to the fluid chamber m, of a boiler of a heater IOI,equivalent to the heater before described, to the tube or pipeconnection '-A fluid connection 'I02,'equivalent to the fluid connection00, is adapted to be to the valve stem and control plunger 02. The

valve stem and control plunger I00 extends upwardlythrough an openingI01 in a horizontal partition I00 suitably and conveniently flxed in thebellows housing I00 at location above the fluidconnection I02, and. anupper portion of said valve stem and control plunger I00 terminateswithin a part I00 of the control chamthe inlet pipe m below'itspassageway m. ,A

coil spring (not shown) arrangedupon the shutber: I03 above saidhorizontal partition I00. The

part I000! the control chamber I03 communicates by way of a fluidconnection I10 with a lower portion of thcfluid chamber I00. The fluidconnection I10 is, in effect, equivalent to the boss or protuberanceIII. and the fluid'conwith a valve seat I12 surrounding and provided bysaid opening I01. The disc valve I" is disposed above said partition I00within the part I00 of the control chamber I03 adjacent thefluidconnection I10. The horizontal partition 0 I00 includes a smallbleeder hole or port I13 which makesprovision for limited passage offluid medium from the fluid connection I02 through the control chamberI03 and past said partition I00 to the'fluid connection I10 when thedisc valve "I is in closed position.

An upper portion I10 of the bellows housing I00, which upper portion I10is above, the horizontal partition I00 in spaced relation thereto, is

closed and suitably and conveniently supports thebase of a device(equivalent to the device before described and of which the horizontalpiece 12 is the base) for allowing and shutting off flow of combustiblefuel mixture from a carburetor I15 through a passageway I10 of an inletpipe I 11. The inlet pipe I11 is equivalent to the inlet pipe I30 andleads to the heater or burner IOI, which may be of substantially thesame construction and operative in substantially the same manner ashereinbefore described in connection with Figs. 1 to 6. The device ofFig. 7

for allowing and shutting off flow of combustible of! rod I10,equivalent to the coil spring I00, normallyretains the upper end portionor shutofl valve I10 of the shut-oi! rod I10 in position as disclosed inFig. 7, and also retains the base "of'the bellows of the device of saidFig. 7 for allowing and shutting off flow of combustible fuel mixturethrough the inlet passageway I10 in engagement with the upper end of thevalve stem and control plunger I00 upon the control bellows I00, as inFig. 7. The arrangement is such that when the control bellows: I00 iscontracted the discvalve "I is in the closed position of 'the openingI01,and when said control bellows I00 is expanded the valve stem andcontrol plunger I00 causes said disc valve "I to bemoved to openposition and the shut-oft rod I10 and its valve I19 to be elevated,against the action of the coilspring, sothat the shut-off valve I10enters the lower end of the inlet passageway I10 to completely shut of!communication between the carburetor I10 and the combustion chamber ofthe burner.

Assuming the parts of the heating apparatus of Fig. 7 to be situated asthere'shown, with the resistance element of the heater or burnerenergized and the internal combustion engine of the automotive vehiclehaving said heating apparatus in operation, liquid fuel mixed with airwill be drawn or pulled or fed from .the carburetor I15 into the heaterby way of the inlet pipe I11, due to suction created in the intakemanifold of said internal combustion engine, as before set forth. Thecombustible fuel mixture will burn in the combustion chamber of theheater, and fluid in the boiler space or fluid chamber I00 willbeiiated. The products of,

combustion, when spent andcomparatively 0061,, will pass to the intakemanifold of the internal combustion engine. Evidently. there will beforce or pressure feedof the hot fluid upwardly through said boilerspace or fluid chamber I00 caused by force or pressure feed offluid-cooling or circulatingmedium of the coolingor circulating systemof said internal combustion engine. More explicitly, there will not onlybe force or pressure feed of fluid-cooling or circulating mediumupwardly, through the boiler space of fluid cham fuel mixture from thecarburetor I10 through the inlet passageway I10 to the heater or burneralso may be operative substantially in the manner as before set forth.It includes a shut-oil rod I10, equivalent to the shut-off rod I00,which extends upwardly through a bellows (not shown),

equivalent to the bellows I03, in alining rela-' tion to the valve stemand control plunger I00, as well as upwardly through an opening in thebase (supported by the closed upper portion I10) of said device forallowing and shutting oil flow of combustible fuel mixture. The upperend portion"! of the shut-off rod I10 is adapted to constituteashut-oil' valve, equivalent to the shut-off valve I01, situatedin thelower end of her I00, but there also will be force or pressure feed ofthe fluid-cooling or circulating medium upwardly through the heatingunit, such as 20, of the heating apparatus. That is, when the elementsof the heating apparatus are situated as in Fig. '1, fluid-cooling orcirculating medium will be forced from the engine jacket, such as I0, tothe fluid, 'connectioni02, thence through the control chamber I03 andthe bleeder holeor port I13 in the horizontal partition I00 to the fluidconnection I10, thence through the boiler space or fluid chamber I00'-tothe fluid con--. nection I00, thence through the tube or pipe 0| to theheating unit, thence upwardly through said heating unit, and thencethrough the tube' or pipe 30', the fluid connection I00 and 'a fluidcon-,

nection such as I0 back to the engine=jacket. In

passing through the heating unit the hot fluid medium will give up itsheat to the tubes and fins of said heating unit, and'the blower or fanwill cause the heat to be distributed throughout ternal combustionengine of an automotive ve-- hicle having the heating apparatus of Fig.'lis to situate the disc valve I1l in closed position and tosituatethevalve I19 as in said Fig. '7, in spaced relation to the inlet passagewayI16 through the inlet pipe I11. Supposing the internal combustionengineto be started up cold withthe parts of the heating apparatuspositionedes in Fig. 'l,'the resistance element of the heater beingenergized, the course of the fluid-cooling. or circulating medium of thecooling or circulating system of said internal .combustion engine, willbe through the control chamber I63, as stated. The fluid-cooling orcirculating medium cannot at this time pass freely through said controlchamber I63 because the disc Valve l1l is in closed position. Instead,the passage of fluid-cooling or circulating medium through the controlchamber I63, and hence through the boiler space or fluid chamber I06,will be considerably limited by the size of the bleeder hole or portI13. Due

to the comparatively slow travel of fluid medium asoopii While thecontrol bellows I65 is expandedrand hot fluid medium is beingcaused'tocirculate from the engine, jacket to the' heating unit and back to thejacket, the course of flow of hot fluid medium is the same as before,except that the flow is not restricted. Both when the disc valve I'll isin open and in closed position, hot fluid medium, liquid or gaseous, asthe case may be in a particular instance, is forced to flow upthroughtheboiler. space or fluid chamber I06 all of the fluid medium whichpasses said boiler space orfluidchamber is adapted to be thoroughlyheated. Upon the heating up of the fiuidcooling or circulating mediumdue to heating up of the internal combustion engine by operationthereof, said fluid-cooling medium will, by rea--' son of its contactwith the control bellows I65, cause said control bellows to becomeheated. At

' such time as the temperature of the fluid-cooling or circulatingmedium of the cooling or circulating system of the internal combustionenvalve "I to be moved to open position to allow free or unrestrictedcommunication between the fluid connection I62 and the tube or pipe 5|,of course by way of the control chamber I63 and the boiler space orfluid chamber I06. Also at this time, the valve stem and control plungerI66 will have caused the valve I19 to enter the inlet passageway I16 andcaused said passageway to be shut off. Obviously, when the disc valve "Iis in open position the flow of fluid medium through the control chamberI63, the fluid chamber I06 and the heating unit, such as 25, "will ationof said heating device is concluded. That is, the inlet passageway I16is shut oil to terminate the drawing or pulling or feeding ofcombustible fuelmixture intothe combustion cham'- ber. The resistanceelement of the burner l6l becomes de-energized as before described, andwith cessation of feed of combustible fuel mixture to the combustionchamber of the burner, the rewardly through the heating unit. Thedirection of flow through said heating unit can of course be downwardlyin any instance where this is considered preferable. Should thefluid-cooling or circulating medium become reduced in temperature toextent suflicient to render said fluid medium unfit for proper heatingof the automotive vehicle body during operation of the internalcombustion engine, the parts of the heating apparatus will becomeoperated to the positions as in Fig. 7, and the special heating deviceI6l will be set in operation while pressure or force feed causes flow offluid medium through the heating apparatus past the bleeder hole or portI13.

The heating apparatus of Fig. 7 will operate to the accomplishment ofthe results as set forth in connection with the heating apparatus ofFigs. 1 to 6, and can be inexpensively maintained for the reasons statedin connection with said heating apparatus of said Figs. 1 to 6.

Attention is called to the fact that while in Fig. -7 there is discloseda construction and arrangement for forcing heating fluid medium throughthe bleeder hole orport I13 when the disc valve l1l is in closedposition, as well as through the boiler and the heating unit, from andcirculated by the internal combustion engine cooling or circulatingsystem, heating fluid medium could in some instance or other be forcedpast said boiler and heating unit through the instrumentality ofa meansother than said cooling or circulating system when said disc valve I1!is closed. Actually, the heating fluid medium forced through the fluidchamber I06 and the heating unit while the disc valve l1l is in closedposition could be supplied from a source other than the cooling orcirculating system of the internal combustion engine, as will beobvious.

In Figs. 8 and 9 there is disclosed a heating apparatus of furthermodified construction made according'to the invention. A tube or pipeconnection 36a, equivalent to the tube or pipe 36, and a tube or pipeconnection 5m, equivalent to the tube or .pipe bl, are supported uponthe dash 24a and lead to a heating unit, which could be the heating unit25, of the heating apparatus. A fluidconnection I extends between thetube or pipe connection 36a and an upper portion of a fluid chamberlll6a, equivalent to the fluid chamber I66, of a boiler of a heaterl6la, equivalent to the heater before described, and a fluid connectionI8l extends between the tube or pipe connection 5m and a lower portionof said fluid chamber lfifia.

A pressure equalizing tank I82, desirably at elevation above the boilerspace or fluid chamber N50,, communicates with a lower portion of3,800,011 11 said boiler space or fluid chamber I061: through inposition where communication between the a gravity flow pipe III In someinstances, the carburetor I88 and the combustion chamber of to shut ofl'communication between I88 and the longitudinal porpassageway I86, tothus shut between the carburetor I85 A hollow the heater I 6Ia is nsapparatus of an automotive vehicle the arrangement desirably will bedesired that the heating apparatus become operative, the lever I8 isactuated to aline the circular opening I98 in the shut-011! valve I81with p or pulled or fed from the carburetor I 85 into the heater by wayof the inlet pipe I84 and the passageway I98; due to suction created inthe pipe 86a over to the The hot fluid medium heating unit, such as 25.Window downwardly thereto. If the hot fluid from the combustion chamber.gization of said resistance is sustained by the re-igniter of the heaterso tional. I n

In Fig. 10 there is disclosed a heating apparatus of still furthermodified construction made acintake manifold,

through said heating unit The fluid medium oi! the electric motor andblower or fan. The upper tank 26b of the core of the heating unit 251)is open to the upper portion of the boiler space or fluid chamber I06b,and the lower portion of said boiler space or fluid chamber I06b is opento the lower tank 21b of said core. The heater I6Ib is as disclosed ofthe same general structure and. operative in the same general manner asset forth in connection with Figs. 8 and 9. I

Hot fluid medium, whether liquid or gaseous, as the case may be, createdin the fluid chamber I061) of the boiler of the heater ISIb of Fig. 10will rise tothe top or upper portion of said fluid chamber IOBb andenter the upper tank 201). Upon entering said upper-tank the hot fluidmedium will flow or be forced downwardly through the tubes of the coreof the heating unit 25b and give up its heat to said tubes and the finsthereon. If the hot fluid medium is steam, or gaseous, it will becondensed in the core of the heating unit. The hot fluid medium willpass downwardly by gravity through the core of the heating unit 251) andenter the lower tank 21b.

to be heated in the fluid chamber I061) of course continuously issupplied from the lower tank 211). The resistance element of the heaterI6Ib is energized during the starting period of the burner, and becomesde-energized by application of heat from the combustion chamber of saidheater IBIb. Upon de-energization of the resistance element combustionis sustained by the re-igniter of the heater, as hereinbefore set forth,so long as the feed of combustible fuel mixture to the combustionchamber is continued. The supply of combustible fuel mixture ismaintained and shut oil by actuation of a shut-off valve operated andoperative in the same general manner as stated in connection with thehollow tube shut-oil valve I81 Figs. 8 and 9. The heating apparatus ofFig. 10, like the heating apparatus of said Figs. 8 and 9, desirablywill include a switch,or other manually actubreaking the electricalcircuit including the resistance element of the heater I6Ib when this isintentional.

In Fig. 11 there is disclosed a heating apparatus of yet still furthermodified construction made according to the invention. The presentheating apparatus includes a heating unit 250, with electric motor andblower or fan (not shown), a casing Me, an upper control bellows chamber600, a lower control bellows chamber GIc, an upper bellows housing 640,a lower bellows housing 650, an upper control bellows 8Ic, an uppervalve stem and control plunger 820 with disc valve 040 for opening andclosing a partition 610 in the bellows housing 640, a lower controlbellows 920, a lower valve stem 930 with partition 140 in the bellowshousing 650, a boiler with outer boiler shell I030 and inner boiler coreI040, and a heater I6Ic including elements as described in connectionwith the heater of Figs.-1 to 6. The boiler including the outer boilershell I030 and the inner boiler core I040 is built directly into theheating unit 250, and. a boiler space or fluid chamber I06c is providedbetween said outer boiler shell I030 and said inner The heater Nile andsaid boiler are at one side of the electric motor and blower or fan. Theupper tank 260 of the core of the heating unit 250 is open to the upperportion of the boiler space or fluid chamber I060, and boiler space orfluid chamber the lower portion of said I060 is adapted to 75 boilercore I040.

The upper control chamber 600 is connected with the upper tank 260 ofthe heating unit 250 by a tube or pipe 350, and the lower tank21c ofsaid heating unit is connected with the lower control chamber GIc as attile. The disc valve 040 will control passage of hot fluid medium fromthe tube or pipe 360 to a fluid connection 500 leading to a fluidconnection such as I8 in Fig. l, and the disc valve 950 will controlpassage of hot fluid medium from a fluid connection 500 leading from ajacket such as I5 in said Fig. 1 to the lower tank 210.

In said Fig. (equivalent to the tubular connector the same purpose)extends centrally downwardly from the inner boiler core I0lc and issecured to the base of the lower tank 210 by a fltting I340. A lightclosure valve 200 includes a base 20I thereof mounted for longitudinalmovement upon said tubular connector I320. The base 20I of the closurevalve 200 is slidable upon an intermediate portion of the tubularconnector I320, and said closur valve 200 includes an annular skirt 202which extends downwardly from said base 20I. In turn, th annular skirt202 of the closure valve 200 merges in an annular seating portion 203 ofsaid closure valve situated within the lower tank 21c directly beneaththe boiler space or fluid chamber I060. The construction and arrangell,a tubular connector I32c ment is such that when the light closure valve200' is in lowered position the lower surface of the annular seatingportion 203 of said closure valve will rest upon the base of the lowertank 21c to provide an annular passageway 20! between the lower opencircular end portion 205 of the outer boiler shell I030 and the controlvalve 200 and its annular skirt 202 and annular seatingportion 203, andhence between the lower tank 210 and the boiler space or fluid chamberI060, as in Fig. 11. The construction and arrangement is also such thatwhen said control or closure valve 200 is in elevated position the uppersurface of said annular seating portion 203 will engage beneath andagainst said lower open circular end 205 of tank 210 into said boilerspace or fluid chamber I080.

A partition 62c, equivalent to the partition 62 and for the samepurpose, includes a small opening 63 of the same nature and for the samepurpose as the small opening 63. The disc valve 05c has an opening 206for permitting passage of fluid medium in limited quantity from thefluid connection 580 to the lower tank 210 when said disc valve 950 isin closed position. The opening 2'26 could just as well be situated inthe partition The construction of Fig. 11 will operate in about the wayas described in connection with Figs. 1 to 6, except that the controlbellows 92c and 8Ic will function to control only the travel or passageof hot fluid medium from the fluid connection 580 to the lower tank 210and the travel or passage of hot fluid medium from the tube 'or'pipe 360to the fluid connection 590, and to cause an inlet passageway Il0c,equivalent to the inlet passageway I40, from a carburetor to .thecombustion chamber of the heater I6Ic to be open when the controlbellows 8Ic is contracted I32 and for and to be shut-oi! when saidcontrol bellows is expanded, in about themanner as hereinbefore setforth.

When the fluid-cooling or circulating medium of the cooling orcirculating system or the internal combustion engine of an automotivevehicle I equipp d with a heating apparatus as in Fig. 11 is belowaset=and predetermined temperature at or above which said fluid-coolingor circulating medium should be to properly heat-the interior space ofthebody oi! said automotive vehicle, the control bellows lie and He willbe contracted. and the upper valve stem and control plunger 820 will bepositioned to situate the shut-oil! valve for controlling flowofcombustible iuel mixture from the carburetor employed to thecombustion chamber oi the heater I6lc out of the inlet passageway c.Supposing the internal combustion engine of the automotive vehicle tobestarted up cold with the parts of the heating apparatusoi Fig. 11situated as disclosedinsaid flgure, the resistance element'oi the heaterl6lc being energized, the course of the fluid-cooling or circulatingmedium of the cooling or circulating sys-,

tern of the internal combustion engine from the Jacket thereoi to theheating apparatus andback to the jacket will be through the fluidconnection 580 to the lower control chamber Blc, thence through theopening We in the partition 620 to the upper control chamber 600, andthence through the fluid connection 590 and a fluid connection such asla in Fig. 1 back to the engine jacket. The fluid-cooling or circulatingmedium cannot at this time travel downwardly or upwardly past the discvalves 95c and 84c because said disc valves are closed. Upon heating upof the fluid-cooling or circulating medium due to heating up of theinternal combustion engine by operation thereof, the upper and lowercontrol bellows 8 lc and 920 will become heated. At such time as thetemperature or the fluid-cooling or circulating medium of the cooling orcirculating system of the internal combustion engine has become heatedupto a degree at which it is desirable. that fluid of said cooling orcirculating system traverse the heating unit 250, the upper and lowerbellows llc and 820 willhave expanded sufllciently to allowcommunication between the fluid connection 580 and the lower tank 210through the lower control chamber Glc and between the tube or pipe secand the fluid connection 580 through the upper control chamber 60c. Alsoat this time, the upper valve stem and control plunger 820 will havecaused the shut-oflf valve for the inlet passageway 0c to enter saidinlet passageway and cut of! communication between the carburetor andthe combustion chamber of the heater lilc. I During the interval theinternal combustion engine is warming up, the heating device I Bicoperates in the manner and to the purpose as before described, and whenthe temperatur of the fluid-cooling'or circulating medium of theinternal combustion engine cooling or circulating system becomessufliciently warm or hot to properly. heat the interior oi the body orthe automotive vehicle, operation oi said heating device is concludedbyautomatic shutting oi! oi the inlet passageway be to terminate thedrawing or pulling or feeding or combustible fuel mixture into thecombustion chamber. As stated in connection with the disclosure of.Figs. 1 to 6, the resistance element of the heater l6lc becomesdeenergized during the interval after th internal combustion engine isheating up, and with cessation of feed of combustible fuel mixture tothe combustion chamber oi. the burner,- the re-igniter loses its heat,

While the control bellows Blc and Me are expanded and hot fluid mediumis being caused to circulate from the Jacket or the internal combustionengin to the heating unit 250 and back to said jacket, the course of theflow or hot fluid medium is from the fluid connection 58c through thelower control chamber. Bic into the lower tank 210, upwardly throughthetubes of the heating unit c into the upper tank 26c, and back to thefluid connection 590 through thetube or pipe 38c and the upper controlchamber 600. The opening 63c does not appreciably lessen the flow of hotfluid medium through the heating unit 250 when this is being supplied orprovided with fluid cooling or circulating medium from the internalcombustion engine cooling or circulating ystem. The construction andarrangement is such that the light closure valve lllllis caused. to belifted and slid longitudinally upwardly upon the: tubular connector132:: in response to flow of hot fluid medium through the heating unit25c while the disc valves c and c are in open position. That is, flow offluid-cooling or circulating medium from the internal combustion engine.cooling or circulating system is suflicient when the disc valves 84c and950 are open to cause the light closure valve 200 to be elevated inresponse to the flow to position causing the annular sealing portion 203of said closure valve 200 to be seated against the lower open circularend 205 of the outer boiler shell I030. Thus, when the internalcombustion engine cooling or circulating system is supplying hot fluidmedium to the heating unit 250 none of the hot fluid medium suppliedpasses through the boiler space or fluid chamber I06c. Instead, all ofthe hot fluid medium passesupwardly through the tubes of said heatingunit. When the flow from the internal combustion en-, gine cooling orcirculating system ceases, the light closure valve 200 returns bygravity to the position as in Fig. ll. I

The small opening 206, in the disc valve 95c as disclosed, is for thepurpose of causing pressure to be equalized in the core of the heatingunit 250. a When the heater I6lc of the heating apparatus 01' Fig. 11 isoperative, the disc valves c and We at this time being in closedposition, hot fluid medium, whether liquid or gaseous, created in theboiler space or fluid chamber I06c will rise in said boiler space orfluid chamber I Me to the top or upper portion thereof and pass into theupper tank 260. Upon entering the upper tank 280 the hot fluid mediumwill flow or be forced downwardly through the tubes of the core of theheating unit 250 and give up its heat to said tubes and the finsthereon. If the hot fluid medium is steam, or gaseous, it will becondensed in th core of the'heating unit. The hot'fluid medium will passdownwardly by gravity through the core of the heating unit 250 and enterthe lower tank 210. The fluid medium to be heated in the fluid chamberI060 oi! course is supplied from the lower tank 21c. The light closurevalve 20!) remains in position as in Fig. 11 whenthe heater lilo isoperative to supply hot fluid medium to the heating unit 250, sothat-said fluid medium travels into the: fluid chamber Illfic from thelower tank 21c by way of the annular passageway 2M. v

In the disclosure oi. Fig. 11, hot fluid medium, liquid or gaseous, asmay be the case in some particular instance, supplied by the heater lilois caused to flow or travel downwardly through the heating unit 250,while hot fluid medium supplied by the cooling or circulating system ofthe internal combustion engine employed in connection with the heatingapparatus of said Fig. 11 is caused to flow or travel upwardly throughsaid heating unit 25c.

. Should the fluid-cooling or circulating medium oi'the cooling orcirculating system of the internal combustion engine employed inconnection with the heating apparatus of Fig. 11 become reducedintemperature to extent sufficient to render said fluid medium unfit forproper heating during operation of the internal combustion engine, theparts of said heating apparatus will become operated to the positions asin said Fig. 11, and the heater IGIc automatically will be set inoperation while fluid medium under pressure at the small opening 206causes proper pressures to exist intthe heating unit 250 and the fluidchamber I080.

The heating apparatus'of Fig. 11 will operate to the accomplishment ofthe results as recited in connected with the heating apparatus of Figs.1 to 6, and can be inexpensively maintained for the reasons hereinbeforeset forth.

What is claimed is:

1. The combination with the fluid cooling system of an internalcombustion engine, of independent heater means, control means for saidheater means, heat transfer means, means connecting said cooling systemand said heater means, respectively, to said heat transfer means, flowcontrol meansin said connecting means, and thermostatic means responsiveto the temperature of the fluid in said cooling system for actuatingsaid flow and heater control means upon' a decrease in fluid temperatureto cause flow to be at least substantially shut off from the coolflowcontrol means in said connecting means, and

thermostatic means responsive to the temperature of the fluid in saidcooling system for actuating said flow and heater control means upon adecrease in fluid temperature to cause flow to be at least substantiallyshut off from the cooling system to the heat transfer means and torender the heater means operative and upon an increase in fluidtemperature to cause flow insubstantial quantity'from said coolingsystem to said heat transfer means and to render said heater meansinoperative, said connecting means being adapted to convey fluid forheating purposes to the heat transfer means from the heater means whilesaid heater means is operative and flow from said cooling system to saidheat transfer means is at least substantially shutoff.

3. The combination with the fluid cooling system of an internalcombustion engine, of independent heater means, control means for saidheater means, heat transfer means, means connecting said cooling systemand said heater means, respectively, to said heat transfer means,

flow control means in said connecting means, and

thermostatic means responsive to the tempera ture of the fluid in saidcooling system for actuating said flow and heater control means upo'n'adecrease in fluid temperature to cause flow to be at least substantiallyshut off from the cooling system to the heat transfer means and torender the heater means operative and upon an increase in fluidtemperature 'to cause flow in substantial quantity from said coolingsystem to said heat transfer means and to render said heater meansinoperative, said connecting means including elements thereof adapted toconvey fluid for heating purposes to the heat transfer means from theheater means at least partially by thermosyphon action while said heatermeans is operative and flow from said cooling system to said heattransfer means is at least substantially shut off.

4. The combination with the fluid cooling system of an internalcombustion engine, of independent heater means, control means for saidheater means, heat transfer means, a blower adapted to be driven tocause air to be circulated incontact with said heat transfer means,means connecting said cooling system and said heater means,respectively, to said heat transfer means, flow control means in saidconnecting means, and thermostatic means responsive to the temperatureof the fluid in said cooling system for actuating said flow and heatercontrol means upon a decrease in fluid temperature to cause flow to beat least substantially shut off from the cooling system to the heattransfer means and to render the heater means operative and upon anincrease in fluid temperature to cause flow insubstantial quantity fromsaid cooling system to said heat transfer means and to render saidheater means inoperative, said connecting means including elementsthereof adapted to convey fluid for heating purposes to the heattransfer means from the heater means while said heater means isoperative and flow from said cooling system to said heat transfer meansis at least substantially shut ofi.

5. The combination with the fluid cooling system of an internalcombustion engine, of independent heater means, controlmeans for saidheater means, heat transfer means, first means and second meansconnecting said cooling system and said heater means, respectively, tosaid heat transfer means, said first and second connecting meansincluding elements in common, flow control means in said firstconnecting means, and thermostatic means responsive to the temperatureof the fluid in said first connecting means for actuating said flow andheater control means upon a decrease in fluid temperatur to cause flowto be at least substantially shut off from the cooling system to theheat transfer means and to render the heater means operative and upon anincrease in fluid temperature to cause flow in substantial quantity fromsaid cooling system to said heat transfer means and to render saidheater means inoperative.

6. The combination with the fluid cooling system of an internalcombustion engine, of independent heater means, control meansfor saidheater means, heat transfer means, first means and second meansconnecting said cooling system and said heater means, respectively, tosaid heat transfer means, said first and second connecting means havingelements in common, flow control means in said first connecting means,and thermostatic means responsive to the temperature of the fluid ofsaid cooling system in said first connecting means for actuating saidflow and heater ture to cause flow to be at least substantially shutoil! from the cooling systemto the heat transfer means and to render theheater means operative and upon an increase in fluid temperature tocause flow in substantial quantity from said cooling system to said heattransfer means and to render said heater means inoperative, said secondconnecting means being adapted to convey fluid for heating purposes tothe heat transfer means from the heater means while said heater means isoperative and flow from said cooling system to, said heat transfer meansis at least substantially shut on.

7. The combination with the fluid cooling system of internal combustionengine, of a first tube tobe connected to a fuel supply pipe adapted tolead from a carburetor, a second tube to be connected to the intakemanifold of said internal combustion engine, independent heater meansproviding a passage between said first andsecond tubes, heat transfermeans, means connecting said cooling system and said heater means,respectively, to said heat transfer means, flow control means in saidconnecting means, means for controlling travel of fuel through thepassage of said heater means, means for igniting fuel within said heatermeans passage, and thermostatic means responsive to the temperature ofthe fluid in said cooling system for actuating said flow control meansand said means for controlling travel of fuel upon a decrease in fluidtemperature to cause flow to be at least substantially shut oil from thecooling system to the heat transfer means and permit travel of fuelthrough said passage and upon an increase in fluid temperature to causeflow in substantial quantity from said cooling system to said heattransfer means and interrupt travel of fuel through said passage.

8. The combination with the fluid cooling system of an internalcombustion engine, of a first tube to be connected to a fuel supply pipeadapted connected to the intake manifold of said internal combustionengine, independent heater means providing a passage between said firstand second tubes, heat transfer means, first means andsecond meansconnecting said cooling system and said heater means, respectively, tosaid heat transfer means, said first and second connecting meansincluding elements in common, flow control means in saidflrst connectingmeans, means forcontrolling travel of fuel through the passage of saidheater means, means for igniting fuel within said heater means passage,and thermostatic means responsive to the temperature of the fluid ofsaid cooling system in saidflrst connecting means for actuating saidflow control means and said means for controlling travel of fuel upon adecrease in fluid temperature to cause flow to be at least substantiallyshut off from the cooling system to the heat transfer means and permittravel of fuel through said passage and upon an increase in fluidtemperature to cause flow in substantial quantity from said coolingsystem to said heat transfer means and interupt travel of fuel throughsaid passage, said second connecting means being adapted to convey fiuidfor heating purposes to the heat transfer means from the heater meanswhile said heater means is operative and flow from said cooling'systemto said heat transfer means is at least substantially shut ofl'. i I

9. The combination with the fluid cooling systolead from a carburetor, asecond tube to be tem of an internal combustion engine, of

and second means connecting 'said cooling system and said heater means,respectively, to said heat transfer means, flow control means in saidfirst connecting means,',and thermostatic means responsive to thetemperature of the fluid in said first connecting means for actuatingsaid flow and heater control means upon a decrease in fluidtemperatureto shut off flow and render the heater means operative and upon anincrease in fluid temperature to cause flow and render the heater meansinoperative.

10. Thecombination with the fluid'cooling system of an internalcombustion engine, of independent heater means, control means for saidway of said heater means to said heat transfer means and to render theheater means operative and upon an increase in fluid temperature tocause comparatively greater fiow from the cooling system to the heattransfer means and to render said heater means inoperative.

11. A heating apparatus comprising means for diverting fluid-coolingmedium from a circulating system of an internal combustion engine andfor utilizing the diverted fluid-cooling medium in said heatingapparatus as heated fluid medium for raising the temperature of theheating apparatus, means independent of said internal combustion enginecirculating system for causing heat to be imparted to a portion of saidfluidcooling medium and for causing said heated portion of thefluid-cooling medium to be employed as heated fluid ture of said heatingapparatus, and devices including thermostatic meansresponsive to thetemperature of the fluid medium operative to render said first mentionedmeans incapable of supplying heated fluid medium to said heatingapparatus when said independent means is operative to cause heatedfluid'medium to be supplied to said heating apparatus and to render saidindependent means incapable of supplying heated fluid medium to saidheating apparatus when said first mentioned means is operative tocause'heatedfiuid medium to be supplied to said heating apparatus.

12. A- combination heated fluid medium and hot vapor medium heatingapparatus, comprise ing a heating unit including ablower adapted to bedriven to cause air to be circulated in contact with said heating unit,means through the culating system instrumentality of which said heatingunit can utilize fluid-cooling medium from and heated by and circulatedby the circulating system of an internal combustionengineqasrheatedwfluid medium for causing the'heating:; unit,1.to ,be

heated, means through. theruinstmmentalitrof which said heating'unitcan, besupplied ,;inde-' inde-* pendent heater-means, control means forsaid" heater means, heat transfer means, first means medium for raisingthe temperaheat said heating unit, thermo-

